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authorAxel Lin <axel.lin@ingics.com>2014-08-05 05:59:49 +0400
committerGuenter Roeck <linux@roeck-us.net>2014-08-06 04:49:01 +0400
commite981429557cbe10c780fab1c1a237cb832757652 (patch)
tree10d9b16dbdbc5fed5d55b5474e1422d2fcb094c7 /drivers/hwmon
parent5b963089161b8fb244889c972edf553b9d737545 (diff)
downloadlinux-e981429557cbe10c780fab1c1a237cb832757652.tar.xz
hwmon: (ads1015) Fix out-of-bounds array access
Current code uses data_rate as array index in ads1015_read_adc() and uses pga as array index in ads1015_reg_to_mv, so we must make sure both data_rate and pga settings are in valid value range. Return -EINVAL if the setting is out-of-range. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/ads1015.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c
index 22e0c926989d..126516414c11 100644
--- a/drivers/hwmon/ads1015.c
+++ b/drivers/hwmon/ads1015.c
@@ -212,6 +212,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
dev_err(&client->dev,
"invalid gain on %s\n",
node->full_name);
+ return -EINVAL;
}
}
@@ -222,6 +223,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
dev_err(&client->dev,
"invalid data_rate on %s\n",
node->full_name);
+ return -EINVAL;
}
}